CVE-2025-39800

In the Linux kernel, the following vulnerability has been resolved:<br /> <br /> btrfs: abort transaction on unexpected eb generation at btrfs_copy_root()<br /> <br /> If we find an unexpected generation for the extent buffer we are cloning<br /> at btrfs_copy_root(), we just WARN_ON() and don&amp;#39;t error out and abort the<br /> transaction, meaning we allow to persist metadata with an unexpected<br /> generation. Instead of warning only, abort the transaction and return<br /> -EUCLEAN.